"European member states will lower interest rates on their loans to Greece retroactively to a margin of 150 basis points from 200 basis points" A default of 25% of their interest payments, gov-to-gov.

“national central banks will pass any profits on Greek government bond holdings in their investment portfolios directly back to Greece.” 100% default on interest payments gov-to-banks.

"Greece has also reached a deal with private holders of Greek government bonds" and "Private-sector bond holders will take a haircut of more than 53%" is at least a 53% default on the PRINCIPAL of gov-to-person debt. You can tell who has the power around here.